Why is trapping effective?
Moles breed very slowly as compared to other small mammals with females bearing only one annual litter of two to seven offspring. Additionally, approximately 50% of moles will die of natural causes each year, principally from starvation. Couple this low reproductive rate and high natural mortality with a mole’s territorial, low-density social structure (two to three individuals per acre is standard), and it is easy to imagine the benefits of removing even small numbers of moles from your lawn.
